AMERICAN ENTOMOLOGY. 141 



J. 



Joint, articulation ) this word is applied to the space between two 

 incisures, as the divisions of the antennas. 



Jugulam, that cavity of the posterior part of the head to which 

 the neck is annexed. 



K. 



Keelf the carina. 



L. 



Labial palpi, articulated filaments, one on each side of the la- 

 bium; the interior or anterior palpi. 



Lahiated, having lips. 



Labium, lower lip; composed of the mentum, and liffula or 

 tongue; it supports the labial palpi. 



Labrunif upper lip ; the superior member of the trophi ; it is 

 generally moveable, and applied to or placed immediately beneath 

 the nasMs, and above the ma /irf('6^es; it is sometimes entirely con- 

 cealed ; it is the labium of some authors. 



iocera^ecf, ragged ; torn. 



Lacinise exteriores, (in the family Apidae,) two elongated, flat- 

 tened or concave, biarticulate valves, situated on the tongue and 

 near their tip supporting the /a^^a^pa^;);'; they are distinguished 

 from those palpi by being flat instead of cylindrical. 



Lacinise interiores, (in the family Apidae,) two inarticulate, mem- 

 branaceous valves, which embrace the tongue at its entrance into 

 the tube. 



Laciniated, jagged ; cut into irregular segments. 



Lactescent, yielding or secreting a milky fluid. 



Lactetis, of a shining white or milky color. 



Lacunose, pitted ; having the surface covered with small cavities. 

 See /arose. 



Lamella, a thin plate or foliation. 



Lamella fed, (antennae) divided laterally into distinct plates or 

 foliations. Seejissilc, setaceous, &c. 



Lanate, wool y ; covered with dense, fine, long, white hairs, so 

 distinct that they may be separated. See tomcntose. 



Lanceolate, lance or spear-shaped ; oblong and tapering t<? the 

 end. 



Larva, the first state of an insect subsequent to the egg ; it is 

 known by the names maggot, grub, caterpillar, &c. ; it is slow, 

 sterile, and voracious ; the old authors called it eruca. 



